N- poera



(No Model.)

0. SGHMANDT. DEFLEOTOR FOR VACUUM FANS.

No. 248,354. Patented Oct. 18,1881.

UNITED STATES PATENT FFICE.

CHARLES SOHMANDT, OF BROOKLYN, ASSIGNOR TO LEWIS OOLNVELL AND JOSEPH OOLWELL, BOTH OF NElV YORK, N. Y.

DEFLECTOR FOR VACUUM-PANS.

SPECIFICATION forming part of Letters Patent No. 248,354, dated October 18, 1881.

Application filed March 19, 1881. (No model.)

T 0 all whom it may concern:

Be it known that I, CHARLES SCHMANDT, of Brooklyn. in the county of Kings and State of New York, have invented an Improved Deflector for Vacuum-Pans, of which the following is a specification.

Figure l is a side elevation, partly in section, of a vacuum-pan containing my improved deflectorin the pipe that leads to the condenser. Fig. 2 is an enlarged vertical section of this deflector attachment; Fig. 3, an enlarged horizontal section of the same. Fig. 4 is a detail end view, on astill larger scale, of one of the deflector-bars; Fig.5,aside viewofthesame; and Figs. 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16 are sectional views ofmodified forms of the deflecting-bars.

This invention has for its object, principally, to prevent the transmission of valuable substances from the vacuum-pan to the condenser, and is more particularly intended for use on such vacuum-pans as are employedin the man ufacture of sugar. As at present constructed these vacuum-pans have in the pipe that leads to the condenser a deflecting-plate th at extends downward across the entire width of the pipe, and that is intended as an instrument of obstruction to sugar that may be carried with the vapors to the condenser, but which, in fact, is nothing but a means of bending the pipe, or of doubling it so that the vapors first go downward, then upward, or vice versa, before they reach the condenser. Such a plate is shown at D in Patent No. 191,537. The current of the vapors is sufficiently powerful to carry with them, despite the deflecting-plate, large quantities of valuable material, which go to waste after they have passed said deflector-plate.

My invention consists in placinginto a downwardly-extending chamber that is set into the conduit or pipe that leads from the vacuumpan to the condenser a series of ribs or bars, so placed as to break jointsthat is to say, one row ofba rs stands behind the open spaces which are formed bet ween the next row of bars, and so onthus producing a series of obstructions to the passage of the current, which will cause all the valuable particles that may be carried with the current to be arrested by said bars, and to drop along them into the lower hold of the enlarged and downwardlyextending chamber into which said bars are placed, and entirely out of reach of the current.

In the accompanying drawings, the letterA represents a suitable vacuum-pan.

B is the pipe that leads from said pan to the condenser. In this pipe I place an enlarged chamber, 0, that extends some distance below the body of the pipe B, as shown, and into this chamber 0 are placed, as is more fully shown in Fig. 3, a series of upright or slightly-inclined bars, I) I), placed in rows, each row facing the inlet-opening a to the chamber 0 and the outlet-opening I), as also shown in Fig.3. The several rows of bars D D in the chamber 0 are arranged to break jointsthat is to say, the second row is placed behind the spaces that are formed between the bars of the first row, the third row is like the first, the fourth row like the second, &c.- so that thus the vapors 7o entering in the direction of the arrows shown in Fig. 3 will strike the first or second row of bars, then the third or fourth row, then the fifth or sixth row, and will thus be brought in contact with a great many obstructing-stirfaces, along which the particles of sugar will have opportunity to descend downward into the lower portion of the chamber G, below the pipe B, and by which all particles ofsugar that may be carried away from the body of vacuumpan will most certainly be arrested, so that I none will leave the chamber 0.

I find by practical experiment that the best form for the bars D is that shown in Fig. 3-to wit, an angular flaring form resembling the letter V in cross-section, so placed that the concave or hollow and flaringside of the V will face the inlet-opening a and the convex or peaked side the outlet-opening. By this construction the particles of sugar in the vapors will be more thoroughly detained, and fuller opportunity is given tow the sugar to collect in the lower part of the chamber 0, as it will always run along the hollow sides of the bars D, while the vapors are deflected without being 5 detained and condensed, as is the case with the inwardly-curved bars heretofore proposed; but instead of making the bars D of the flaring V form shown in Figs. 3 and 4, they may be made of the forms shown in Fig. 6 to 16, inclusive, 10o

with more or less as good eflect, or of any other equivalent form, so long as they will not tend to prevent the vapors leaving their hold. If desired, the bars may be made hollow, as indicated in Figs. 12, 14, and 15, so that by passing suitable liquid through them their temperature may be properly regulated.

The bars D of each row may be united into one frame, if desired, or made from one plate; and I do not limit myself, therefore,to the use of separate bars D D in each row, but intend to include, for the purposes of this specification their connection into plates, so long as by such plates practical bars are formed, that are placed in rows into the downwardly-ax tending chamber, one behind the other, and made to break joints, as described.

I am aware that inwardly-curved deflectors have already been proposed for use directly within the goose-neck of the vacuum pan. This necessitated the erection of a bridge within said goose-neck, directly behind the deflectors, and a consequent reduction of area of the goose-neck, which is "ery detrimental to the proper operation of the apparatus. The inwardly-curving bars are also particularly objectionable, as they tend to prevent the vapors from leaving the hollow of each bar, and therefore induce condensation before the condenser is reached.

I claim- 1. In a vacuum-pan, the outlet-pipe B, in combination with upright bars D D, contained within a chamber that is set into said pipe and extends below it, said bars being arranged in rows one behind the other, so that each row breaks joints with the row next in front, sub stantially as described.

2. In combination with the outlet-pipe B and its downwardly-projecting chamber 0, of a vacuum-pa n, the upright bars D, made V- shnpcd, and placed with their hollow flaring faves toward the incoming vapors, substantially as specified.

CHARLES SUHMANDT.

7 i tnesses WILLY G. E. SCHULTZ,

WILLIAM H. 0. SMITH. 

